Precise location and danger-free drilling with the 3in1 SAFETY-FIXX locating device in indoor locations. Before drilling, make sure that there are no hidden power lines, metal or wooden beams behind the surface to be drilled.Simply calibrate the surface to be drilled and the live lines, metals up to a maximum depth of 38 mm can be found with a handful of other hand-picked and wooden beams up to 18 mm from dry construction. The find points are indicated by lighting up of the light emitting diodes and an acoustic signal. Simply swipe your hands over the surface to be drilled to mark the start of the find using the positioning aid. The LEDs go out as soon as they are forwarded and the end of the location is marked by return. The location is in the middle of the two marks. Measurement accuracy +/- 3 mm, including 9 volt alkaline battery, dimensions 15.5 × 6.5 cm.This text is machine translated.